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Finding the Fourth Proportional to 18,595.76, 27,893.65 and 11,675.12

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Solution

The fourth proportional to 18,595.76, 27,893.65 and 11,675.12 is: 17,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.76 : 27,893.65 = 11,675.12 : x
  2. Step 2: Convert to fraction form
    18,595.76/27,893.65 = 11,675.12/x
  3. Step 3: Cross multiply
    18,595.76x = 27,893.65 × 11,675.12
  4. Step 4: Simplify right side
    18,595.76x = 325,661,710.99
  5. Step 5: Solve for x
    x = 325,661,710.99/18,595.76
  6. Step 6: Final answer
    x = 17,512.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.